Ugdhar

I know the official minecraft forums have a modding section, but as I don't go there, I can't say if they are helpful/knowledgeable or not.

Looks like you have your JDK pointing to your JRE. Just to forewarn you, if you do not have previous java experience, modding will be nearly impossible, and only forge is supported on these forums, not basic java.

1.12 is no longer supported on these forums due to age. Please update to a modern version to receive support here. More information on supported versions can be found in the LTS link at the top of every page.

Really really old versions are no longer supported on these forums due to age. Please update to a modern version to receive support here. More information on supported versions can be found in the LTS link at the top of every page.

So what is your question exactly? And probably need to see more code, i.e. where you register your event handler. Best way to do it is have your whole project in a github repository and share the link here

1.12 is no longer supported on these forums due to age. Please update to a modern version to receive support here. More information on supported versions can be found in the LTS link at the top of every page.

Really really old versions are no longer supported on these forums. Please update to a modern version to receive support here. More information on supported versions can be found in the LTS link at the top of every page.

Please post the installer log, should be in the same folder as the installer, with the same name, but end with ".log".

Really old versions are no longer supported on these forums. Please update to a modern version to receive support here. More information on supported versions can be found in the LTS link at the top of every page.

In your project you should have src/main/resources/META-INF/mods.toml If you do not, grab it from the examplemod that comes with the forge SDK and put it there, then edit it so it represents your mod.

1.12 is no longer supported on these forums due to age. Please update to a modern version to receive support here. More information on supported versions can be found in the LTS link at the top of every page.

1.12 is no longer supported on these forums due to age. Please update to a modern to receive support here. More information on supported versions can be found in the LTS link at the top of every page.

No, I mean in your repo, you have assets/computeparts/textures/New Folder (as in, literally, "New Folder")

Double check your textures folder in the repo for the item folder. Don't give up on your logs, read them!!

Please don't send PMs, there's no reason to, keep it on the forums. And it doesn't matter what you think is interesting, if you won't post the log, you can't get help, sorry.

Pretty sure there's a logfile with a lot more information than that in it! Check in the logs folder in your game directory.

You should set up a github repo for your project, makes it much easier to share code for people to help Can you post the log? It'll be in the run/logs directory. And just to be sure you have assets\computeparts\textures\item and assets\computeparts\models\item ?

Please post the full log, there is more information in there we are missing.

Your package name should be the same as your modid, and all lowercase So everywhere you have compParts.assets etc, it should be computeparts like your modid.

1.12 is no longer supported on these forums due to age. Please update to a modern versions to receive support here. More information on supported versions can be found in the LTS link at the top of every page.

1.12 is no longer supported on these forums due to age. Please update to a modern versions to receive support here. More information on supported versions can be found in the LTS link at the top of every page.

You should really make a github repository for your project so people can see all the code in one place. Until then, please post the code where you are registering your first block.

Same thing, change all instances of "FirstBlock" in your project to "firstblock" and see if that helps.

Package name is wrong, you have data.minecraft.tags with water.json, you need another package in tags called fluids

Use Java 8, there's a library or something used by forge that requires it. Also, you don't need a JRE if you download a JDK, it comes with it. The Oracle account you need to download Java 8 is free, but if you don't want one you could try OpenJDK, lots of people on here are using it just fine: https://adoptopenjdk.net/